GST / VAT Calculator
Add or remove GST/VAT from any amount. Supports India (5/12/18/28%), UK (20%), Australia (10%), EU standard rates, custom rates, and 10+ extras. 100% private.
About GST / VAT Calculator
Add or remove GST/VAT from any amount. Supports India (5/12/18/28%), UK (20%), Australia (10%), EU standard rates, custom rates, and 10+ extras. 100% private. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
What's the difference between GST-inclusive and GST-exclusive?
GST-inclusive: the displayed price already includes tax. To find the GST amount: price × (rate / (100 + rate)). GST-exclusive: tax is added on top. GST amount: price × (rate / 100), total = price + GST.
What extras does this tool have?
Extras: (1) Add GST (exclusive → inclusive), (2) Remove GST (inclusive → exclusive), (3) Country presets (India 5/12/18/28%, UK 20%, Australia 10%, Singapore 9%, NZ 15%, EU 19-25%), (4) Custom rate, (5) Multi-currency, (6) Show base + GST + total breakdown, (7) Batch mode (multiple amounts), (8) CSV export, (9) History (localStorage), (10) Show effective tax rate, (11) Reverse: find original from final, (12) Copy individual results, (13) CGST+SGST split (India), (14) IGST option (inter-state India).
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